Choanocyte - Wikipedia
Choanocytes (also known as "collar cells") are cells that line the interior of asconoid, syconoid and leuconoid body types of sponges that contain a central flagellum, or cilium, surrounded by a collar of microvilli which are connected by a thin membrane.
28.1B: Morphology of Sponges - Biology LibreTexts
2024年11月23日 · Porocytes control the amount of water that enters pores into the spongocoel, while choanocytes, which are flagellated cells, aid the movement of water through the sponge, thereby helping the sponge to trap and ingest food particles.
What are choanocytes? Give its functions. - Types - CK-12 Foundation
Choanocytes, also known as "collar cells", are a type of cell found in sponges. They are characterized by a central flagellum (a whip-like structure) surrounded by a collar of microvilli. The name "choanocyte" comes from the Greek words "choane" meaning "funnel" and …
Choanocytes | Definition, Functions & Structure - Lesson
2023年11月21日 · Choanocytes are special cells found in sponges. Choanocytes consist of a round cell body lined with microvilli around a central flagellum. Choanocytes assist with filter feeding in sponges....
Choanocyte - an overview | ScienceDirect Topics
Choanocytes are specialized cells that have a single flagellum surrounded by a net-like collar of microvilli (Figure 3). Choanocytes join together creating the choanoderm, where they perform two major functions.
Choanocyte - an overview | ScienceDirect Topics
Choanocytes are one of the better-understood cells in sponges in terms of their origin, function, and differentiation potential. They generate flow, capture food, and can differentiate into other choanocytes, spermatocytes, and even oocytes.
The origin of animal multicellularity and cell differentiation
In modern species, collar cells often function in food absorption: choanoflagellates and sponge choanocytes phagocytose bacteria, and the collar cells lining the gastrodermis of some cnidarians endocytose food particles produced by extracellular digestion (Goldberg and Taylor 1989).
Sponge - Anatomy, Filtering, Reproduction | Britannica
2024年11月5日 · The most important structure is the water-current system, which includes the pores (ostia), the choanocytes (collar cells), and the oscula. Three principal types of sponge cells may be distinguished: choanocytes, archaeocytes, and pinacocytes–collencytes.
Pluripotency and the origin of animal multicellularity | Nature
2019年6月12日 · Here we test this view of animal origins by comparing the transcriptomes, fates and behaviours of the three primary sponge cell types—choanocytes, pluripotent mesenchymal archaeocytes and...
The architecture of cell differentiation in choanoflagellates and ...
2019年4月12日 · Choanoflagellates are microscopic aquatic organisms that can alternate between single-celled and multicellular states, and sequencing of their genomes has revealed that choanoflagellates are the closest single-celled relatives of animals.
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